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Etherscan

Official registry Finance and payments

Read-only Etherscan V2 blockchain data: balances, transactions, transfers, tokens, contracts, logs.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http etherscan 'https://mcp-keyless.etherscan.io/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "etherscan": {
            "type": "http",
            "url": "https://mcp-keyless.etherscan.io/mcp"
        }
    }
}
Remote (streamable-http)
Claude Code 
claude mcp add --transport http etherscan 'https://mcp.etherscan.io/mcp' --header 'Authorization: <Bearer <ETHERSCAN_API_KEY>. Create a free key at https://etherscan.io/apis.>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "etherscan": {
            "type": "http",
            "url": "https://mcp.etherscan.io/mcp",
            "headers": {
                "Authorization": "<Bearer <ETHERSCAN_API_KEY>. Create a free key at https://etherscan.io/apis.>"
            }
        }
    }
}

Frequently asked questions

What is Etherscan?

Read-only Etherscan V2 blockchain data: balances, transactions, transfers, tokens, contracts, logs.

How do I install Etherscan?

It runs as a remote server. In Claude Code: claude mcp add --transport http etherscan 'https://mcp-keyless.etherscan.io/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Etherscan need an API key?

Yes. It expects Authorization, which you set in its configuration.

Who maintains Etherscan?

It is published by io.etherscan. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.